Grain Size Data from the NOAA Outer Continental Shelf Environmental Assessment Program (OCSEAP)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 1980-12-31T00:00:00.000+00:00

This data set contains grain size data from samples acquired under the NOAA Outer Continental Shelf Environmental Assessment Program (OCSEAP) from the Outer Continental Shelf around Alaska. Data were contributed by the University of Alaska, the University of South Carolina, the Scripps Institution of Oceanography, and the US Geological Survey with funding from NOAA. Data fields include collecting institution, ship, cruise, sample id, latitude/longitude, date of collection, water depth, sampling device, method of analysis, sample weight, sampled interval, raw weight percentages of sediment, within a given phi range. Some samples also have percentages of total gravel, sand, silt, clay, and statistical measurements such as mean, median, skewness, kurtosis, and standard deviation of grain size. These data are part of the larger NGDC Seafloor Sediment Grain Size Database (doi:10.7289/V5G44N6W).

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Complete Metadata

describedByType	application/octet-steam
identifier	gov.noaa.ngdc.mgg.geology:G02891
isPartOf	NCEI Marine Geology Data Archive
issued	1980-12-31T00:00:00.000+00:00
language	[]
references	[ "https://doi.org/10.7289/V5G44N6W", "https://data.noaa.gov/metaview/page?xml=NOAA/NESDIS/NGDC/Collection/iso/xml/Marine_Geology.xml&view=getDataView&header=none", "https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/Geology/iso/" ]
rights	otherRestrictions, unclassified, otherRestrictions
spatial	-120.0,50.0,-180.0,80.0
temporal	1975-05-28T00:00:00+00:00/1977-12-31T00:00:00+00:00